Question Pc case weirdness or so I think

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Oct 31, 2022
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Recently I experienced my pc not posting when Its in the case but after I took the motherboard out of the case it seems to work everything even peripheral
 
You don't have BIOS battery inserted.
You don't have graphics card installed.
Video output on motherboard will not work, because your cpu doesn't have integrated GPU.
I know that but I installed the battery the GPU and still nothing no signal in the monitor
I updated the bios before the system crushed it only worked once after that ist bios related issues then
I don't think so because this existed before the bios update

IAM at a loss